R0453700 | Jandy Bypass Assembly for LXi Heaters

OEM Jandy Bypass Assembly R0453700 is a key hydraulic component engineered to maintain safe and efficient operation in Jandy LXi pool and spa heaters. This assembly regulates internal water flow, ensuring optimal circulation across the heat exchanger while protecting the system from pressure buildup and thermal damage. It includes the bypass valve, O-rings, and locking ring needed for a complete installation. As a genuine Jandy part, it delivers dependable performance, simplifies maintenance, and helps extend the lifespan of your heater.

Highlights

• Controls Internal Water Circulation: Regulates flow through the heat exchanger, promoting efficient heating and preventing over-pressurization

• Includes Complete Assembly Hardware: Comes with O-rings, locking ring, and bypass valve for a comprehensive solution and secure installation

• Specifically Designed for LXi Models: Compatible with all Jandy LXi heater models, offering a precise fit and restoring factory flow settings

• OEM-Verified for Long-Term Reliability: Built using high-quality materials and tested to Jandy’s standards for performance in high-heat, high-pressure conditions

• Essential for Restoring Heater Function: Replaces worn or damaged bypass assemblies to ensure consistent heat transfer and optimal system function

Includes

• (1) Bypass
• (1) O-Ring
• (1) Locking Nut

Compatibility

• Jandy LXI Heater Models: LXI250N, LXI250NN, LXI400N, LXI400NN, LXI250NC, LXI250NS, LXI400NC, LXI400NS Natural and LXI250P, LXI250PN, LXI400P, LXI400PN, LXI250PC, LXI250PS, LXI400PC, LXI400PS

Additional Info

R0453700 Bypass Assembly – Water Flow Control for LXi Heaters

R0453700 regulates internal water flow in Jandy LXi heater systems

includes bypass valve, O-ring, and locking ring for proper seal

fits Jandy models LXi250N, LXi400P, LXi400PC, and more

essential for restoring stable water circulation in gas heaters

prevents damage from overheating due to improper flow

Jandy Heater Water Bypass Kit R0453700 – For Consistent Heating

part R0453700 controls bypass flow in high-efficiency gas heaters

OEM Jandy component ensures precise internal flow regulation

restore lost heat performance caused by faulty bypass valves

compatible with both natural gas and propane Jandy LXi heaters

used during heater rebuilds and internal plumbing repairs

Pool Heater Bypass Valve Assembly R0453700 – Jandy LXi Repair Kit

R0453700 is a complete solution for LXi heater bypass failure

includes locking nut to secure valve assembly in place

prevents uneven heat distribution and flow-related shutdowns

replace if internal valve is stuck, leaking, or cracked

ideal for seasonal maintenance of Jandy LXi models

Diagram